Yahoo is expanding its efforts to protect its users' online activities from prying eyes by encrypting all the communications and other information flowing into the Internet company's data centers around the world.

Two of Germany's biggest Internet service providers said Friday they will start encrypting customers' emails by default in response to user concerns about online snooping after reports that the U.S. National Security Agency ...

A Texas-based email service reportedly used by National Security Agency systems analyst Edward Snowden said it was shutting down Thursday, explaining in a cryptic message that it would rather go out of business than "become ...